Line valve



Aug. 2, 1938. G.1E..FRANCK v I 2,125,554

LINE VALVE Filed Aug. 17, 193e I I 3o V IN V EN TOR.

outside at che mid portion the connecting l element is constructed in the form of e. nut IE to supply awrench hold during assembly or readjustment and a threaded extension il forming the outer wall of the recess 8 is adapted to connect with the intermediate element 2. 'Element I therefore performs the oillce of a separable connecting medium yto the fluid line with which` the valve device is to be used and in vadl'tioncarries the seat for the valve on which operation of the device depends.

Intermediate element 2 formingthe other part of the body portion cf the valve device has a threaded pocket `like depression I2 from whichA a central passage I3 extends forming. an `aper ture throughelement.

depression I2 has an annular shape and acts as a support for a retaining ring I5 where the character of the packing requires it. A packing ma terial 16 of tne conventionall sort occupies the bottom of the depressionand is surmounted by less ductiler consistency, because in addition to holding the nacking material in place, its function is to form a tight seal against the hat edge of the threaded extension II'on the connecting element I to assist in preventing leakage of ilnid from within the valve. At the junction of the face I8 of y the ring, with the central hole I8 thereof, a right angle valve seat 251s formed, y the purpose of which will be later described. 0n 40 the outside vthe element 2 is constructed in the form of a nut 2I similar to the element I to supply a wrench hold.

A skirt portion 22 -is provided on the element 2 and midway .in the skirt an annular groove 23 is cut to form part of a swivel connection. A sleeve 24 on the left side of the handle 3 surrounds the slrt 22 with a slight clearance so that 'they mayi rotate freely with respect to each other and a groove 25, complementary to the groove 23, is cut in the inside wall of the sleeve. When the two grooves thus formed are placed together they form an annular hole vin which a wire 2I-maybe inserted.v To supply access to the annular hole,'thus formed .by the junction of the grooves 28 and 25, a lead hole 25 is drilled through the sleeve 24 from the outside, tangent to the compositeannular hole. In forming the swivel joint the 'wire-21, originally in a straight piece of measured length, is driven through the hole 26. The wire being ductile, lfinds its own wayl around the annular hole and fastens the two members together though per-1 mitting them to rotate one around the ether.

There is a slight clearance between the wire and A 2 3 extends outward togive balance to the device and provide a wall for a depression 2l. A- `-lenur`ledneircnniference at the outer rim 30 of tlie handle furnishes a `ccmmodious hand grip f-or turning the valve oif and von. e. i

lWithin the handle member is a partition wall 2| which has a hole threaded, preferably with The bottoni Il 0f the i ber 3 the resistance supplied by the line prevents left hand threads, to accommodate the valve member 4 previously referred to.v This valve member comprising one of the novel features of the device is composed essentiallyof a cap er valve element 32 and a connecting element 33 5 for a tube, joined together by a stern- 34. The element/33 is shaped similar to the-connecting element I at the opposite terminal of the device for solder conne-:tion withfa pipe or tubing 4 as described previously. That lpart of the stem 10 34 immediately adjacent 'the element 3l is threaded as at 35 with left handv threads to cooperate with the threadedv hole of the partition wall 8| in order that a right hand rotation `of the handle will translate the valve to the15 left to a shut-off position. rhe diameter of the passage I3 in the intermediate element 2 is large enough to permit the threaded portion 35 to lslide along within it free from interference, the only point of contact of thelstem with 'the body being 20 `the area where it rubs along the packing. The main part of the stem 34 at the left is reduced in cross section and extends as noted. in snug slid- -ing relation through the packing I and terminates in the cap orlvalve 32. A central passage 25 35 extends' entirely through the valve member,

opening in to the fiuid line at the right hand connection. i ,i

Near the left hand end of the stem-agroove 31 is cut and the end is beveled as! at 3l to t 30 inside the cap l2. A rim '38 is constructed on f f the cap so that it can bepressed-/to a n =oating ilt into the groove 21. Passages 4i .piercing the sloping walls of the cap form a path of minimum resistance for a duidpassing 35 throughl the valve device.

Valve 32 fits against the seat lof the connecting element I and. due to the se floating enn gagement-of the valve with stem, is permitted to nd its own perfect at and establish 4e a fluid tight closure upon exertion of a very y slight pressure.

Immediately to the right of the groove'S'I a shouder 42 is rigidlyattached to the stem. The shoulder has a sloping face 4I facing the ring 45 Ia so that when the valve is completely opened tc itsnormal vonerative position the face 4I bears against the seat 20 on ring I1, forming a seal which is an added assurance against leakage past the packing. This back seating .feature 5a'- rotation of the other parts of lthe device.v If di) occasion requires, however. the body may be secured bya hand hold or wrench hold on the element 2. It will be observed that when open, 'the fluid follows the sie-pe of thecap or valve 32 through the passages il without-abrupt change 65 in direction and continues then unrestrictedthrough the vave device. When the valve is completely open the packing scalis reinforced by l the metal to metal back seat. Very little pressure is necessary to securely close vthe valve and no 70 strain is placed upon the'valve assembly.-

What I claim therefore andgseek-to secure by Letters Patent.'is: l y Y 1. A valve device for val fluid line 'comprising a'body member including one element connectible 'l5 Sii 'dit

' at one of its ends with the fluid line and having at the other end an extension, a recess in said extension, and a valve seat at the bottom of said recess; another element having a pocket to engage the extension on the rst element, a packing y gland at the bottom of said pocket having packing material therein and a ring of rigid material 'surmounting the packing material, said gland being impressed between said body elements, and a valve member including a oating valve cap and a valve stem, said valve member. extending through the pocket and the recess in the 'body member and encompassed by said packing gland;

means for loosely attaching the valve cap to one end of the stem to permit said valve cap to find 'its own seat when the valve device is closed,

-bne terminal a connecting element engageable with said line having a passage therethrough and having at one end a threaded extension and a recess of diameter larger than said passage cooperable with the passage to form a valve seat,`

a valve member including a valve and a stem for said valve, the valve member having 'a central passage with an entrance at the valve end and an exit at the opposite end, means' forming a second terminal for attaching the other end of' the valve device to the iiuid line, an. intermediate tioh of said valve to and away from the seat, and y rneansfor limiting the translation oi the valve away from the seat; said last means being operable as areverse seal for said valve device to prevent leaks when in open position.

3. A valve device for a iiuid line comprising at 'intermediate element having a central passage` ior'the stem, said intermediate element being engage'able with the connecting element and forming a joint for packing therebetween, and

i means rotatable with respect to said elements and threadably engageable with said stem being operable rotatably to move said valve to and away from said seat.

di, A valve device for a uid line comprising a fixed member connectible in said line, a valve line, means for joining the free end oi said valve member directly to the fluid line, .the fixed merri-r ber having an aperture for the accommodation of the stem, packing means to render the space around the stem gas tight, and Vmeans for opening and closing said valve.v

5. A valve device for a iiuid line comprising a membenconnectible in said line, a valve seat therein, a valve member cooperable with said seat comprising a. valve stem and a valve element loosely attached thereto, there being a passage past said valve seat and through said valve element and stem comprising a continuously direct passage for iiuid, means on the valve member for joining said member to the uid line, and means connected with the valve member for opening andclosing said valve device.

6. A valve device forming a streamline passage for fluid .through a fluid line comprising a body member having a valve seat therein, a valve element including a direct seating valve and a valve stem cooperable with said seat, a handle member engageable with said body member and said valve element operable to move said valve to and away from saidr seat, said valve being constructed in the form of a hollow iioating cap loosely engaging said stem and operable on closing to adjust itself to its own seat, said cap having perforations formed therethrough comprising a portion of said streamline passage.

7. A valve device for a iiuid line comprising at one terminal a body member including an elements connectible at one end with the iluid line and having at the other end thereof an extension and a recess in said extension, a valve seat at the bottom oi the recess, a second element engaging the extension on said first element having a pocket therein,` a packing gland at the junction of said elements and a ring of rigid material surmounting said gland, said gland being pressed into position between said elements, a valve member comprising a valve and valve stem extending through the pocket and the recess and encompassed by said packing gland, a handle member on said body member ier openingand closing the valve device, and an annular offset on the valve member facing the ring and operable to seat thereon at iuli open position. 4

il. A valve device for a fluid line comprising a body member comprising two sections connectible in said line, a valve seat therein, a valve member comprising a stem and a valve and means forming a central passage through said valve member, one end of said central passage being in communication with the fluid line and the other end being in communication with the valve, said body member having a passage for accommodation of the stem, packing adjustably compressibie between the sections of the body member surrounding the stem by movement oi one section with relation to the other and means for opening and closing the valve device.

ii. A valve device for a fluid line comprising a body portion connectible in said line, a valve scat in the body portion, a valve portion including a stem and a direct seating valve comprising a perforate cap loosely attached to the stem, means including said cap forming a iiuid passage through said device, means for connecting the passage with the duid line, a rotating handle member having an open central aperture encompassing said valve portion, said handle member interconnecting said valve and body portions, and having a swivel engagement with one and a threaded engagement with the other, and operable to eiect arelative axial movement be- (iii tween said portions in response to rotation o! said handle member.

10. A valve devicev for' a iluid line comprising a body portion connectible in said line, a valve. seat, a valve cooperable with said seatfor open-- ing and'closing vthe valve device, a valve stem having a passage therethrough, said passage opening into the valve at one end and in direct communication with the fluid line at the other end, a reverse acting valve member on the stem and 'a reverse acting valve seat located within the body cooperable therewith to seal .the device against leaks when in open position. the body i portion having an` aperture for accommodation of the stem,'means providing a'gas 4tight sliding engagement between the body portion andthe stem, and means connected with -said body portion and attached to thestem ior opening and 30 line so that when the valvel is open there is a continuously direct passage for fluid through the apertured element and the stem, said body portion having packing secured therein and com- 4 pressibly adjustable into gas-tight relationr with the stem. and a handle element connected with the body and the stem for opening and closingl the valve device. i

12. a streamline valve'device for a duid une comprising aj body portion of two separable concentric sections connected together at the ends, one oi' said sections being equipped with means for making a connection with the uid line and I provided 'witna valve seat and a passageway for iiuid, a concentrichandiemember rotatably connected at an end of the other bodysection forming a continuation-oi' said-section'and have "ing a central aperture therethrough and a recess at thefree end thereof, a valve stem pro.-

vided with a passage for iluid equivalent in capacity to the passage o f the body. section and a means thereon for making a connection with the fluid line retractable into the recess, said -stem lbeing connected with the handle member -and positioned within -the central aperture thereof and extending within said body sections,

said' stm being provided with a valve element at an end'thereof cooperable with saidvalve seat for openingvand closing the valve device.

GEORGE E. FRANCK. 

